郭志凯,李龙飞,杨王玥,孙祖庆

• 1:北京科技大学新金属材料国家重点实验室
• 2:北京科技大学材料科学与工程学院

摘要(Abstract)：

通过热模拟压缩和两相区退火实验,结合SEM、XRD方法,研究基于马氏体温变形的高锰TRIP钢制备过程的组织演变,并分析了变形工艺和退火工艺对组织演变的影响。结果表明:高锰TRIP钢温变形促进马氏体分解及铁素体动态再结晶的发生,两相区变形过程中可以形成奥氏体,同时渗碳体粒子溶解。随后两相区退火时,铁素体通过再结晶完成等轴化,奥氏体持续形成的同时渗碳体粒子逐渐溶解。通过高锰TRIP钢马氏体温变形加两相区退火工艺,可以在较小应变量和较短退火时间条件下获得由亚微米尺度的铁素体基体、马氏体和残留奥氏体组成的复相组织。

关键词(KeyWords)： 高锰TRIP钢;马氏体;温变形;两相区退火;残留奥氏体

Abstract:

Keywords:

基金项目(Foundation): 国家重点基础研究发展计划资助(2010CB63081);; 新金属材料国家重点实验室自主课题(2011Z-04)

作者(Author): 郭志凯,李龙飞,杨王玥,孙祖庆

DOI: 10.13289/j.issn.1009-6264.2014.10.025

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